13,420
edits
Changes
no edit summary
<li value="15">Enable SSH access to your virtual machine with these commands (semi-colon allows commands to be run in sequence):<br /> <b><code><span style="color:#3366CC;font-size:1.2em;">service sshd start; chkconfig sshd on</span></code></b></li>
<li>Find out the IP address of your virtual machine and the name of your Ethernet network adaptor: <b><code><span style="color:#3366CC;font-size:1.2em;">ifconfig</span></code></b> </li>
<li>Enter the following command on your virtual machine to create a firewall exception to allow ssh traffic into the machine:<br /> <b><code><span style="color:#3366CC;font-size:1.2em;">iptables -I INPUT -p tcp -s0/0 -d0/0 --dport 22 -j ACCEPT</span></code></b></li><li>If you are logged in as root, logout to your regular user account.</li><li>Confirm that you can ssh to your virtual machine from the host (your main CentOS installation): <b><code><span style="color:#3366CC;font-size:1.2em;">ssh regularuserid@c7host_IPaddress</span></code></b> (where '''regularuserid''' is your regular user login id, and '''c7host_IPaddress''' is the '''IP_ADDRESS''' of your c7host machine!).</li><li>Make certain to '''disable SELinux for centos1''' (refer to lab1)</li><li>Run Adjust your screen-saver settings and run a '''yum update''' on your centos1 VM before proceeding to ''Part 2''</ol>
|}
# Create the VM (called '''centos2''') as you did with the ''centos1'' virtual machine, except for the following differences:<br><br><ol type="a"><li>select network installation using the installation source url displayed above.</li><li>When customizing your partitions, do the same operation that you did in centos1, but after automatically creating the partitions, reduce the size of the root LVM partition to '''8000 MB''' and add an LVM partition with a size of '''2000 MB''' (mount point: '''/home''', name: '''home''', and make certain root and /home partitions have '''ext4''' file system).<br><br></li></ol>
# Complete the installation. Login to your regular user account, and perform a yum update for the centos2 VM (reboot if required). Make certain to adjust your screen-saver settings if desired.
# Repeat the steps as you did to '''start the SSH service''', '''set iptables to accept connections via ssh''', '''test connect between centos2 and c7host''', and '''disable SELinux''' (refer to lab1).
# Record the time taken to install, and compare this to the time taken by the previous installations. Record your findings in the Installation Comparison chart in lab2 logbook.